A compressor at high altitudes will require ___ power. More Same Less None of the listed here TRUE ANSWER : ? YOUR ANSWER : ?
Reciprocating air compressor is best suited for Small quantity of air at low pressure Small quantity of air at high pressure Large quantity of air at low pressure Large quantity of air at high pressure TRUE ANSWER : ? YOUR ANSWER : ?
In n₁ and n₂ are the indices of compression for the first and second stage of compression, then the ratio of work-done on the first and second stages (W₁/W₂) with perfect intercooling is given by W₁/W₂ = n₂(n₁ - 1)/n₁(n₂ - 1) W₁/W₂ = n₁/n₂ W₁/W₂ = n₁(n₂ - 1)/n₂(n₁ - 1) W₁/W₂ = n₂/n₁ TRUE ANSWER : ? YOUR ANSWER : ?
The compression ratio for the compressor is always _________ unity. More than Equal to None of these Less than TRUE ANSWER : ? YOUR ANSWER : ?
Surging is the phenomenon of Air stream not able to follow the blade contour Unsteady, periodic and reversed flow Motion of air at sonic velocity Air stream blocking the passage TRUE ANSWER : ? YOUR ANSWER : ?
Which is false statement about advantages of multistage compressor in comparison to single stage compressor? Less loss of air due to leakage past the cylinder Less power requirement Better mechanical balance Lower volumetric efficiency TRUE ANSWER : ? YOUR ANSWER : ?
The degree of reaction in an axial flow compressor is defined as the ratio of static enthalpy rise in the Stator to static enthalpy rise in the rotor Stator to static enthalpy rise in the stage Rotor to static enthalpy rise in the stator Rotor to static enthalpy rise in the stage TRUE ANSWER : ? YOUR ANSWER : ?
In the axial flow gas turbine, the work ratio is the ratio of Compressor work and turbine work Actual compressor work and theoretical compressor work Actual total head temperature drop to the isentropic total head drop from total head inlet to static head outlet Output and input TRUE ANSWER : ? YOUR ANSWER : ?
Inter-cooling in gas turbine results in Decrease in both thermal efficiency and net output Increase in both thermal efficiency and net output Increase in thermal efficiency but decrease in net output Increase in net output but decrease in thermal efficiency TRUE ANSWER : ? YOUR ANSWER : ?
In a four stage compressor, if the pressure at the first and third stage is 1 bar and 16 bar, then the delivery pressure at the fourth stage will be 16 bar 64 bar 1 bar 256 bar TRUE ANSWER : ? YOUR ANSWER : ?